13494196989961 has 2 divisors, whose sum is σ = 13494196989962. Its totient is φ = 13494196989960.

The previous prime is 13494196989937. The next prime is 13494196989989. The reversal of 13494196989961 is 16998969149431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10461705615936 + 3032491374025 = 3234456^2 + 1741405^2 .

It is a cyclic number.

It is not a de Polignac number, because 13494196989961 - 2²⁷ = 13494062772233 is a prime.

It is not a weakly prime, because it can be changed into another prime (13494196989991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6747098494980 + 6747098494981.

It is an arithmetic number, because the mean of its divisors is an integer number (6747098494981).

Almost surely, 2^{13494196989961} is an apocalyptic number.

It is an amenable number.

13494196989961 is a deficient number, since it is larger than the sum of its proper divisors (1).

13494196989961 is an equidigital number, since it uses as much as digits as its factorization.

13494196989961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816293376, while the sum is 79.

The spelling of 13494196989961 in words is "thirteen trillion, four hundred ninety-four billion, one hundred ninety-six million, nine hundred eighty-nine thousand, nine hundred sixty-one".